The deal takes the builders tally of work won under the regional improvement and efficiency agency IESE framework through the £200m barrier.

The school, which is due to start on site in January 2011 with completion by May 2012, will cater for pupils through to key stage three and includes an all-weather pitch and multi-use games area.

Since 2005, the company has secured £207m of work under the IESE framework, which is used by local authorities in the southern Home Counties.

Sustainable development remains a key focus and during 2008, Willmott Dixon diverted 96.6 per cent of waste from landfill on IESE projects and has an average of four apprentices on each IESE project.

Mid-Sussex SEN School is Willmott Dixon’s ninth project in West Sussex since 2005 and its 19^th under the IESE framework.

Willmott Dixon’s managing director in Cobham, Mark Tant, said: “This project is an important step in securing our targeted workload for 2011 from the southern region, as well as helping sustain our supply chain in the present uncertain market.”